Normal menstruation will end within 7 days, not more than 7 days, when more than 10 days and bleeding to cause high attention to gynecological diseases, such as uterine fibroids, endometrial polyps, ovarian cysts, cervical polyps can be caused by menstrual dribbling, need to ultrasound to rule out the existence of these abnormalities. For example, when there is endocrine hormone disruption, such as prolactinemia, polycystic ovaries, hyperthyroidism can cause ovarian function decline, hormone level disruption and more than one menstrual flow, and even some of the women who are pregnant can cause more than one menstrual flow, you need to go to the hospital to take a blood test of the HCG value, no pregnancy can be checked for endocrine hormones, and according to the situation you can take anti-inflammatory and stop the bleeding medication to help stop the bleeding. Depending on the situation, anti-inflammatory and hemostatic drugs can be taken orally to help stop the bleeding, and the next cycle can be taken orally to regulate the artificial cycle to avoid frequent menstrual bleeding.